Synthesis and Characterization of Magnesium Aluminate Spinel Porous Ceramics by Novel Molten Salt Method

Abstract:

Magnesium aluminate spinel (MgAl₂O₄) porous ceramics were in-situ synthesized by heating the mixture of Al₂O₃ and MgCO₃ with MgCl₂ salt at 1400~1600 °C for 3 h, and then characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The morphology of as-prepared MgAl₂O₄ porous ceramics was dependent on the addition of MgCl₂, and it indicated that the MgCl₂ molten salt not only acted as a template for pore formation of the porous ceramics, but also provided a liquid environment for the synthesis of MgAl₂O₄.

• Periodical: Key Engineering Materials (Volume 697)
• Pages: 399-403
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.697.399
• Online since: July 2016
• Authors: Xian Gong Deng, Jun Kai Wang, Hai Jun Zhang*, Jiang Hao Liu, Shao Wei Zhang
• Keywords: Magnesium Aluminate Spinel, Molten Salt Synthesis, Porous Ceramics

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